Merge "Merge branch 'upstream-master'"

1 files changed, 39 insertions, 0 deletions

diff --git a/sound_card_init/utils/src/error.rs b/sound_card_init/utils/src/error.rs
new file mode 100644
index 00000000..93d53b9b
--- /dev/null
+++ b/sound_card_init/utils/src/error.rs
@@ -0,0 +1,39 @@
+// Copyright 2020 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+//! This mod contains all possible errors that can occur within utils.
+use std::fmt;
+use std::io;
+use std::time;
+use std::{error, path::PathBuf};
+
+use remain::sorted;
+
+/// Alias for a `Result` with the error type `utils::Error`.
+pub type Result<T> = std::result::Result<T, Error>;
+
+/// This type represents all possible errors that can occur within utils.
+#[sorted]
+#[derive(Debug)]
+pub enum Error {
+    /// It wraps file path with the io::Error.
+    FileIOFailed(PathBuf, io::Error),
+    /// It wraps file path with the serde_yaml::Error.
+    SerdeError(PathBuf, serde_yaml::Error),
+    /// It wraps time::SystemTimeError.
+    SystemTimeError(time::SystemTimeError),
+}
+
+impl error::Error for Error {}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        use Error::*;
+        match self {
+            FileIOFailed(file, e) => write!(f, "{:?}: {}", file, e),
+            SerdeError(file, e) => write!(f, "{:?}: {}", file, e),
+            SystemTimeError(e) => write!(f, "{}", e),
+        }
+    }
+}